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Re: Saving battery power

On Fri, Mar 09, 2007 at 08:32:21PM +0100, Thorsten Schmidt <meine_mailings@web.de> wrote:
> Hello at all,
> for some time I've been trying to reduce my laptop's power consumption (while 
> running on battery power) on my Fujitsu-Siemens Lifebook C1320 with Debian 
> etch.
> - I echo powersave to /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
> - I installed laptop-mode in order to shut down my harddrive if it is unused.
> - I don't use swap,  /tmp/ is a ramdisk-mount and /var/tmp links to /tmp, 
> (I've 1 GB RAM)
> Thus my hd is barely used and my CPU reaches C3.
> But for some reason, Windows is more efficient in power saving. (3,5h vs. 4,5h 
> battery life while surfing wireless).
> Is there anything else I can do to save battery power?

Basically, no, except waiting for Linux ACPI support to get better.


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